23321413 has 2 divisors, whose sum is σ = 23321414.
Its totient is φ = 23321412.
The previous prime is 23321377. The next prime is 23321443. The reversal of 23321413 is 31412332.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 16176484 + 7144929 = 4022^2 + 2673^2
It is a cyclic number.
It is not a de Polignac number, because 23321413 - 217 = 23190341 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (23321443) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11660706 + 11660707.
It is an arithmetic number, because the mean of its divisors is an integer number (11660707).
Almost surely, 223321413 is an apocalyptic number.
It is an amenable number.
23321413 is a deficient number, since it is larger than the sum of its proper divisors (1).
23321413 is an equidigital number, since it uses as much as digits as its factorization.
23321413 is an evil number, because the sum of its binary digits is even.
The product of its digits is 432, while the sum is 19.
The square root of 23321413 is about 4829.2248860454.
The cubic root of 23321413 is about 285.7052932765.
Adding to 23321413 its reverse (31412332), we get a palindrome (54733745).
The spelling of 23321413 in words is "twenty-three million, three hundred twenty-one thousand, four hundred thirteen".